The most common reason a hand-carry does not go as planned is not customs and not the airline. It is that the item arrived in packaging designed for a completely different journey. Wooden crates that are too large for a cabin, foam that hides the contents from a screener, straps that cannot be reapplied after an inspection, and a shipping box with no way to seal it in a way anyone can verify.
So preparation is part of the movement rather than something that happens before it. The courier collects, checks the goods against the description, repacks where it is needed into something that will physically travel, applies a numbered tamper-evident seal and photographs the whole thing. The photographs and the seal number reach the consignee at the same moment they reach our desk, which is what makes the custody chain something you can check rather than something we assert.
Different categories need different things. Electronics need ESD-safe handling and sometimes shock and tilt indicators. Optical and metrology items need to be immobilised rather than merely cushioned. Anything with wooden packaging crossing certain borders has to meet the international phytosanitary standard for wood packaging material, and that is a certificate rather than an opinion. Temperature-controlled material needs validated packaging and a qualified partner in the chain.
And a screener has to be able to understand it. A package that can be opened and reclosed without destroying its integrity is a package that survives an inspection; one that cannot is a package that arrives resealed with tape and a story. We pack for the inspection that is going to happen, not for the one we hope will not.


